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Laboratory Test Directory

Insulin Series - Stimulation

Components

Name Method Department Units
Insulin Stim Chemiluminescence
Core Lab, Endocrinology IU/mL

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

3 mL 2 mL
Alternate

Red Tube (no anticoagulant) with Gel

3 mL 2 mL
Alternate

Gold tube, (SST) with Gel

3.5 mL 2 mL
Alternate

Green tube (Lithium heparin), No Gel

3 mL 2 mL
Alternate

Green tube (Lithium heparin), with Gel

3 mL 2 mL
Alternate

Green tube (Sodium heparin), No Gel

3 mL 2 mL
Stability

Room temperature - 4 hour(s)
Refrigerated - 7 day(s)

Specimen Preparation

  • Collect at Main Campus only

Reasons for Rejection

  • Wrong collection tube
  • Gross hemolysis
  • Gross icterus
  • Gross lipemia

Comments

Multiple Insulin samples are collected periodically, usually in conjunction with a Glucose Tolerance Test. All specimens must include collection time, and minutes post stimulation and type of stimulation. Usual timed specimens are Fasting, 30, 60, 90, 120, 180, 240 min. Other times at physician request. Please send all samples in this series to the lab as a batch after the last sample is collected.

CPT Code

  • 83525 (x number of samples)